<div class="container">
  <div class="form-group">
    <label for="gcode-commands">Gcode:</label>
    <textarea class="form-control" rows="5" id="gcode-commands" [(ngModel)]="gcodeCommands"></textarea>
  </div>
  <input class="btn btn-primary" type="button" value="Send" [disabled]="!canSend()" (click)="sendCommands()">
</div>
